Summary:Occurred December 2017, Dubai. ''I’m David Nelmes, 24. I’ve been training Parkour for over 7 years and am a professional athlete in the sport. I practiced safely many times before trying these stunts, to ensure very little risk.The Dubai video was at the end of 2017. I managed to sneak into the building and found an unlocked door to the rooftop, about 80 floors up. I practiced the climb many times where it hangs over the rooftop safely before trying it over the drop.''